topic how to get Adjusted survival curve in Statistical Procedures

how to get Adjusted survival curve

Atims — Mon, 03 Oct 2016 18:37:22 GMT

Age being the covariate i am adjusting age. But not sure how to make the survival curve with adjusted rate. Thank you

Re: how to get Adjusted survival curve

Reeza — Mon, 03 Oct 2016 19:50:34 GMT

Assuming SAS/STAT 14.1 (SAS 9.4)

Add the PLOTS=Survival statement to your PROC PHREG statement to get a survival curve. Note that the survival curve will be for a specified age value, usually the average. You can choose to have a different value used if required, usually to make it easier to interpret or explain.

Re: how to get Adjusted survival curve

Atims — Thu, 13 Oct 2016 19:56:53 GMT

Do i also use the mean for categorical variable?or is it just for continious variables?Thanks for the comment.

Re: how to get Adjusted survival curve

Reeza — Thu, 13 Oct 2016 19:59:22 GMT

Uh...you can't take an average of a categorical variable? Possibly an ordinal, but it wouldn't make logistical sense.

Use the Reference Category or a category of interest in this case. See what the documentation states as well.

Re: how to get Adjusted survival curve

Atims — Thu, 13 Oct 2016 20:04:11 GMT

Sure I will try with reference. Also what documentatio are you talking about? Thank you again.

Re: how to get Adjusted survival curve

Reeza — Thu, 13 Oct 2016 20:08:47 GMT

SAS PROC PHREG PLOT statement

http://support.sas.com/documentation/cdl/en/statug/68162/HTML/default/viewer.htm#statug_phreg_syntax01.htm